Step-by-step explanation:
Speed = Distance / Time
given distance = 6km
time = 30 minutes = 30/60 hr = 1/2hr
speed =

Answer: The first option.
Step-by-step explanation:
This domain has no domain restrictions. Therefore, it covers all real numbers. x∈R
Answer:

Step-by-step explanation:
we know that
To find what fraction of the remaining pieces are apple, divide the remaining pieces of apple by the total remaining pieces
we have that
the remaining pieces of apple is equal to 6
the total remaining pieces is 11
so

Answer:
i think it is c. i may be incorrect, i am sorry!
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given: 
To find: c
Solution:
At
:
(i)
At
:
(ii)
At
:
(iii)
On subtracting (i) and (ii),
(iv)
On subtracting (i) and (iii),

On subtracting (iv) and (v),

Put a=3 in (iv)

Put
in (iii)
